Rotary engine.



PATENTED APR. 9, 1907.

P.0.POULSON.

ROTARY ENGINE. APPLIOATION FILED JAN. 4. 1907.

4 SHEETS-SHEET 1.

INVENTOH fczaZ QFmLZbv/a A TTOHNEYS PATENTED APR. 9, 1907.

P. O. POULSON.

ROTARY ENGINE.

APPLICATION FILED JANA. 1907.

4 SHEETS-SHEET 2.

, INVEN T05 .PazaZ d auZaw WW/r60 ATTOHNE YS PATENT-ED APR. 9, 1907.

P. O. PUULSON.

ROTARY ENGINE. APPLICATION FILED JANA} 1907.

4 SHEETS-SHEET 3.

INVENTOR Faul- 01 0x250 ATTORNEY WITNESSES Q.

PATENTED APR. 9, 1907.

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P. 0. POULSON. ROTARY ENGINE. APPLICATION FILED JAN 4 1907 4 SHEETS-SHEIIT 4.

/ INVENTOH J aa ZQfo 0 /4T7 OHNEYS W/ TNE SSE S "PAUL OLUFFPOULSON, OFBRIGHAM, UTAH.

ROTARY mama- Specifioation of Letters Patent.

ENGI'INFE. v

Patented April 9, 1907.

Application filed ilanu ary 4, 1907. Serial No., 350,708.

' To (tZZ wfwne it may concern.-

ments in rotary. TO

elevation of the interior of and Fig. 10 is terior chamber proved Rotary .for instance, steam,

Be it known-that 1, PAUL OLUFF PoU'ilsoN,

a citizen of the United States, and a residentof Brigham, in the county of,Boxelder and State of Utah, have invented a new and Iming is a full, clear,' and exact description.

This invention relates to certain improves engines adapted for use in connection with any suitable motive fluidas, compressed air, water, and the-like and the object of the invention is to providecertain new and improved means for moving the abutments from the chamber as p the piston passes and also certain unprovements in me ans for supplying the ino tive fluid adjacent said abutments for operating the device. s l

Reference is to be had tothe accompanying drawings, formingpart of this specification, in which similar characters of reference indicate corresponding parts in all. the figures, in

which.',; r

Figure l. is an end elevation of my improved engine, the supply and exhaust pipes being shown in section. Fig. 2 is a view similar to Fig. 1, the plate carrying the supply and exhaust pipes being removed. Fig.- 3 is an end elevation of the interior of one-portion of the casing. Fig. 4 is an end the other portion of the casing, showing the pistons and piston bearing member. Fig.5 is a transverse section on the line 5 Fig. 7 is an end elevation of a portion of the engine similar to Fig; '2, but with the reversing-valve ring removed. Fig. 8 isa-transverse section on the line 8 8 of Fig. 1. Fig. 9, is a, vertical section on the line 9 9 of Fig. 2, a vertical section onthe line 10,1'Q0fFig.2. 1 p

In my improved engine I employ a casing made up-of opposite sections l'land 12, each of which is spaced, apart to provide an 1nand each having a'bearing for supporting the shaft 13 of the rotary casing member 11. The bearing of the feasing, member 11 comprises a suitable ournal 14,- while the bearing'within thesect1on.1 2 of the casing comprises merely a recess 15, into which the remainingend of the shaft 13 ex tends. 'The'shaft 13 carries a rotary mam j ber l.6,- rigidly secured thereto, and upon the Engine, of which the followv close it --there is aless number ofthe abutments 5 of Fig.- 1.- Fig. is a transverse section on the line 6 6 of Fig. l.

. merit With the oppositel fluid aets to. rotate said member. The sections 11 and 12 are rigidly secured together around their circumferences, and each is provided with an annular recess 17, which with the recess of the opposite section of the casof packing-ring 18, contacting with the corresponding annular flange 19 of the rotary member 16. The'an'nular chamber forming the cylinder is thus efiectively sealed against the admission or escape of the motive fluid. save through the inlet and exhaust valves hereinafter referred to. The rotary member 16 carries'upon its outer circumference a plurality, 20, which closely contact with the inner walls-of the annular chamber and effectively against the pe=sage of the motive fluid.

At a plurality of points around the annular chamber 1 provide suitable abutrhents adapted'tomove into and out of the annular chamber 1. and serve which the motive fluid may act to propel the rotary member. There may be as many of these abutments as desired but preferably than there are of the pistons 20 whereby it will be impossible for the engine to stop on a deadcenter- Each abutment -preferably comprises two oppositelyisposed members 21 21, movable into andvout of the annular chamber and; supported within recesses in .thecasin'g'. 'Each member comprises a plateof uniform thickness moving within guides 22 in the wall of. the casing and also coniprises, the plates 23, which are of a width equal to su stantially one-half the width of the annular chamber, and

I disposed late effectively closes, said chamber. Eac member of the abutment is'provided with means for. normallyiforcing it out into the annular chamber, and this means preferably-comprises a -rod '24;, carried by each; plate 2.1 and preferably three, baflles or pistons each one in engage 1 having a.coil-spring- 25 in engageme'it with -1 said plate and in engagement with the in- .terior'of the recess withinwhich theabu'tr'nent operates. To prevent. the escape of the motive fluid, this rod may either terminate within thejrecess or may, as shown in the drawings, extend out through suitable packings 26 to the exterior thereof. I

For operating the abutments to move radial lines as each of the pistons and cooperate with cam-lugs 28, carried by each member of each of the: abutments. The plate 21 of each abutment is provided with an extension 29, leading through a recess to the interior of the ring 19, and rigidly secured to this projection is a cam-lug 28. Each as the piston has passed the abutment the cam-lug is of a width somewhat greater than the thickness of the operative part 23 of the abutment, and the inclination of the surface of each of the lugs is such that as the rotary member carrying the pistons is moved two of the cams 27 of said rotary member will engage with the cams 28 of one of the abutments just before the piston reaches said .abutment, and as the rotary member is moved still farther the cams 27 force the cams 28 back into their recesses, and the said cams 23 carry their respective members of the abutment therewith, and at the time the piston reaches said abutment it has been moved entirely out of the path of the piston, and the latter is permitted to pass. As soon cams become disengaged, and the members of the abutment are again forced into the annular chamber by means of the springs 25. As the opposite sides of each cam are exactly alike, it is entirely immaterial in which direction the rotary member is moved, as the cams will engage to move the abutment out of the path of the piston whenever the'said piston ap roaches the abutment.

One wall of the casing is provided with the inlet and exhaust ports and the means where by the flow or the motive fluid may be readily controlled. Separate portions 30 and 31 are provided on opposite sides of each abutment, and suitable passages 32 and 33 lead to ports 34 and 35 in the extreme surface of the casing. These ports open outward and are disposed at equal distances apart and at equal distances from the center of the shaft 14.

Supported upon the outer surface of the member 12 of the casing, or rather within an annular recess in the surface of said member, is provided a reversing-valve ring 36. The portion of the casing within this ring is provided with a central aperture 37, to which the supply-pipe for the motive fluid delivers, and from this central recess lead radial passages 38, extending in the direction of the ports 34 and 35. The ring, 36 is provided with two passages or ports 39, adapted to be placed in communication with either the ports 34 or the ports 35, and it is also provided with ports or passages 40, each adapted to be placed in communication with a port 34 or a port 35 and at the same time in communication with one of the passages 38. Se-

cured to the outer surface of the member 12 of the casing is a plate 41, having outlet-passages or exhaust-pipes 42 in alinement with each of the ports 34 and 35 of the casing and also having a supply-pipe 43 leading to the recess 37 of the casing. This plate may also serve to close the outer sides of the recesses inwhich the abutments are contained and also support the packings for the rods of said abutments, if desired.

In the operation of the engine a motive fluid under pressure is supplied through the pipe 43 to the recess 37, from which it is distributed through the radial passages 38. With the ring 36 in the position shown in the drawings the motive fluid cannot escape through all of these passages, but only through each alternate one. The fluid passes through the ports or passages 40 of the annular member and through the passages 33 of the casing and is delivered into the annular chamber through the ports 31. Meanwhile the ports 30, leading from the annular chamber, communicate, by means of the passages I 32, with the passages or ports 39 of the ring 36, and from said ports or passages it may freely escape through the exhaust-pipes 42. Thus the space at one side of each abutment is open to the atmosphere, while the space upon the opposite side of each abutment is in direct communication with the source of motiye fluid. As the motive fluid enters the chamber it forces each piston away from the abutment behind it and toward the next abutment. As soon as a piston approaches theneXt succeeding abutment a second-piston has suddenly moved the first-mentioned abutment out of the road and passed the same.

tained. As the number'of pistons is prefer-' The motive-fluid then acts upon a new abutment, and the rotation is mainr05- ably greater than the number of abutments,

it is impossible for any of the supply-ports to be in direct communication with an exhaustport, there being a piston intermediate the same at all times. It is furthermore impossible for the engine to stop on a dead-center, as there-will always be a piston a short distance in advance'of some one of the abutments and against which the motive fluid may act.

In order to reverse the engine, it is merely necessary to move the ring 36 by means of the handle 44 until the passages 39, which are shown as being in communication with the passages 32, are brought into communication with the passages 33. At this time the passages 40 of the ring will be brought into communication with, the passages 33 of the casing, and the motive fluid will be delivered to the ports 30 instead of to the ports 31, and'the ports 31 will be placed in communication with the exhaust. The ring 36 may be employed, if desired, for stopping and starting the engine, as by moving it to an Patent intermediate position the motive. fluid will not be supplied to the. annular chamber through any of the ports.

V arious changes may-be made in the struc tureof my improved engine within the scope of the appended claims, but Without departing-from the spirit-of the'invention. v

Having thus described my invention, I

to secure by'Letters,

claim as new and desire.

1. In combination, a'casing having an annular chamber, an abutment carried by the casing and extending into said chamber,' said casing being provided with an. inlet and an exhaust port. on opposite sides of the abutmerit, a rotary member Within said casing, a piston carried thereby and'movable in the annular chamber, and means carried by said rotary member ad acent said piston for moving the abutment out of the path of said able into said annular chamberqfrom oppoable in the site sides thereof, 'a rotary member within the casing, a piston carried thereby and movpiston for moving the members of the abutment outofthc path of the piston.

3. In combination, a casing having an'ans nular chamber, an abutment carried'by the casing and extending into the-annular cham' ber, said abutment comprising two members j slidably mountedwithin recesses in said cas ing,"cam's carried by said members, a rotary member within said casing, a piston carried thereby and movable in the annular chamber,

and means carried bysaid rotary member. ad-

jacent said piston forcontacting with said cams to move the members of the abutment .out ofthe path of the piston.

'4. In combination, a casing havin an annular chamber, an abutment carrie by the casing and extending into'the annular chamber,. said abutment comprising .tWo plates slidably mounted in" recesses in said. casing and entering said annular chamber from opposite sides thereof, means for normally-ford ing said members into the annular chamber and into engagement With-each other, a ro- 'tary member, a piston carried thereby, and. means carried by said rotary member adjaports leading into vsaid chamber adjacent each side .of each of the abutments; asupplyconduit, a plurality .of discharge-conduits,

cent said piston for moving the members of the abutment out of .the path of the piston. 5. In combination, a casing having an annular chamber, an abutment carried by the casing and extending into the annular chamber, said abutment comprisingtwomembers slidably mounted in r'ecessesin saidicasing,

cams carried by'each of said members, means for normallypressmg said members mto said chamber anq mto engagement with each an abutment Within said casannularchamber, and means car- -ried by said .rotary'member adjacent said.

other, and a rotary member having a portion thereof extending into said annular chamber and cams carried by said rotary member for contacting with the first-mentioned cams to move the members of the abutment-out of the annular chamber.

6. Iii-combination, a casing having an annular chamber, a-rotary niemberwithin said casing, a pluralityof pistons carriedfby said. rotary member, a plurality of abutments carried by-"said casing and movable intoth'e annular chamber, the number-of 'sal'd abutments;

being less than the number of said pistons, means carried. by said. rotary member ad a- ;cent each of said pistons for movirigtne abut- ,ments out of the path of said pistons, and-- means for directing ajmotive fluid to said an- Qnular chamber at either side of each abutment and permitting the exhaust from the opposite side.

7.. In combination, a casing having an annular chamber, a rotary member located therein, a piston carried by said rotary member and movable insaid annular chamber, an abutment Within said casing and movable mto said annular chamber, means carried by I the rotary'member for moving theabutment out of the path of .the piston, said casing be ing' provided with an inlet and an exhaust port upon opposite sides of saidabutment, a supply-conduit, an exhaust-conduit, and.

' means for connecting either of said conduits I with either of said ports, 8. In combination, a casing having an annular chamber, a rotary member located therein, a piston carriedby said rotary mem- 'With the ports upon" the opposite sides of each abutment;

' ber and movable insaidannular chamber, a I

' 9. In combination, a casing having an an nula'r chamber, a rotary member located therein, pistons carried by said rotary mem .be'r and movable in said annular chamber, a plurality of'abutments carried by said casing and movable into said annular chamber, said. casing being prov ded with passages and and'a movable ring intermediate said c'on duits and saidcasing, WherebyTthe-supp'ly conduit may be placed in communication with the passages leading to ,eitlibi side oi" 10. In combination, a casing having a annular chamber a rotary member within said casing, a piston carried by said rotary member and movable in said. annular chamber, a plurality of abutments within said casing and movable into, said annular chamber, means carried by said rotary member for moving said abut-nients out of the path of said pistons, said casing being provided with a passage leading to each side of each of the abutments and having their opposite ends f terminating equal distances apart and at equal distances from the center of the rotary member, a plate secured to said casing, supply and exhaust conduits connected to said seen-as plate, and a movable ring intermediate said plate and said casing for placing the supplyconduit in communication with the passages leading to either side ofthe abutments and placing the exhaust-conduits in communica-t 20 tion with the passages leading to the opposite side of each abutment.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PAUL OLUFF POULSON. 

